Improvement in ratchet-wrenches



l. c. GOLBERT.-

Ratchet-Wrenches. "Nm-.145,399,- Pfate'nted D'ec. 9,1873.

UNITED 'STATES PATENT CEEIcE.

ISAAC C. COLBRT, OF MARYSVILLE, OHIO.

IMPROVEMENT IN RATCHETWRENCHES.

Specification forming part of Letters Patent No. 145,399, dated December 9, 1873; application filed July 19, 1873.

To all whom it may concern:

Be it known that I, IsAAc C. CoLBERT, of Marysville, in the county of Union and State of Ohio, have invented a new and valuable Improvement in Ratchet Wrenches; .and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had tothe annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figure I of the drawings is a representation of my invention in section, and Fig. 2 is a side view of the same.

The nature of vmy invention consists in the construction and arrangement of a ratchetwrench with movable bush-thimble inserted in the ratchet-barrel and spring-catch, as will be hereinafter more fully described.

In the accompanying drawing, like letters of reference indicate corresponding parts.

A represents the handle of my wrench, the end of which is forked, as shown in Fig. 2, forming two jaws, B B. These jaws have each a large round hole through them for the passage of the barrel C. This barrel is, between the two jaws, provided with a collar, a, having ratchet-teeth upon one side, which engage with; corresponding teeth on the inner side of the jaw B. A spiral spring, b, is placed around the barrel C, between the collar a and jaw B', which spring acts to keep the ratchet-teeth together. In the barrel C is inserted a bush-thimble, D, with a square hole through its entire length. This thimble may be held in place by a spring, d, fixedby one end in the barrel, passing half around it, and bent at its free end for insertion through the opening d into the bushing. The thimble D can thus readily be removed and another with different-sized aperture substituted, one handle and one ratchet-barrel answering' for all.

Vhat I claim as new, and desirel to secure by Letters Patent, is-

l. The handle A,forming two jaws, B B', one of which is provided with ratchetteeth, the barrel C, with its ratchet-collar a, and the spring d, in combination with a removable bush-thimble, D, substantially as and for the purposes specified.4

2. The ratchet-barrel C, slotted at d', and provided with a spring-catch, d, arranged to pass through said slot d', to secure the bushing D, substantially as herein set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

ISAAC C. COLBERT.

Witnesses M. 0. LAWRENCE, H. W. MOREY. 

